Wagon-jack



(NoModeL) S. LANGPORD.

Wagon Jack. No. 238,792. Patented March 15, 1881.,

N. PETERS. FHDTO-LITHOGRAPHER. WASHlNGTON o C iNITED STATES PATENT truce,

WAGON-JACK.

SPECIFICATION forming part of Letters Patent No. 238,792, dated March 15, 1881.

Application filed January 27, 1881. (No model.)

To all whom it may concern:

Be it known that I, SIMEON LANGFORD, of Oynthiana, in the county of Posey and State of Indiana, have invented certain Improvements in Wagon-Jacks, of which the following is a specification.

The object'of this invention is a Wagon-jack of simple. and economical construction; and the invention consists in the combination of parts, as hereinafter fully described.

In the drawings, Figure 1 represents a side elevation of a jack embodying my invention. Fig. 2 is a front view of the same.

A represents the base, and B the standard, of the jack. The latter is'provided at its upper end with a longitmlinalslot, b, and immediately below said slot with a second slot, 1). The standard is also provided with a slot, 0,

at either side of its upper end, to receive the pivot dot the operating-lever U. The slot 0 is preferably of crook shape, as shown, to permit of the vertical adjustment of the pivoted operating-lever, and to afford bearings therefor at different heights, as hereinafter set forth. The lever is notched at c to receive the axle of the vehicle.

Pivoted or hung t0 the end of the operatinglever G, by links or brackets e, is an outwardlycurved rack-bar, D, the lower end ofwhich projects through the slot 1), the teeth engaging with a shoulder or plate, E, at the upper end of a metallic or other brace, E, secured to the base A and to the standard immediately below the slot'b. A pullrod, F, connected to the curved rack-bar D, passes through the slot 1), and is connected to a bell-crank handlever, G, pivoted between lugs g on the under side of the operating-lever.

By providing the standard with the curved slots 0, presenting different bearings, the lever may be adjusted to different heights without removing the pin, and hence the inconvenience and annoyance caused by the mislaying or loss of the pivotal pin is. avoided, and a material saving of time is effected, as it requires but little effort to change the lever from one bearing to another.

I claim- The combination, in a lifting-jack, of the base A, standard B, provided with slots 0, constructed to present different bearings, le ver 0, pin d, projecting into the slots 0, segmental rack D, pull-rod F, and hand-crank Gr, all substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

SIMEON LANGFORD.

Witnesses:

WILLIAM D. Downs, G. W. FISHER. 

